Results 31 to 40 of about 641,948 (308)

COMPARATIVE STUDIES OF SOLID SOLUTION Li0,125Na0,875NbO3 SYNTHESIZED AT ATMOSPHERIC AND HIGH PRESSURES [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
Structural and electrical properties of a solid solution (SS) of Li0,125Na0,875NbO3 are studied. Synthesis of the solid solution of Li0,125Na0,875NbO3 under high pressure achieves more highly ordered structure.
M.N. Palatnikov   +3 more
doaj  

Electrochemical Methods for Obtaining Thin Films of the Refractory Metal Carbides in Molten Salts

open access: yesInternational Journal of Electrochemical Science, 2017
Synthesis of Cr7C3, NbC and TaC coatings on the surface of carbon steels and carbon fibers was carried out using currentless transfer. The corrosion resistance of the Cr7C3, NbC and TaC carbides coatings was studied in concentrated HCl, H2SO4 and H3PO4 ...
Yu. V. Stulov   +3 more
doaj   +1 more source

The complex networks of earth minerals and chemical elements [PDF]

open access: yes, 2008
We study the large-scale organization of the mineral-mineral (MMN) and element-element (EEN) complex networks by analyzing their topological structures.
Estrada, Ernesto   +1 more
core  

Mafic alkaline metasomatism in the lithosphere underneath East Serbia: evidence from the study of xenoliths and the host alkali basalts [PDF]

open access: yes, 2010
Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
Cvetkovic, V.   +4 more
core   +1 more source

EFFECTS OF CONCENTRATED LIGHT FLOWS ON MECHANICAL PROPERTIES AND STRUCTURE OF CERAMIC PENTAOXIDE NIOBIUM [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2011
Investigating the effect of concentrated light beams on the structure and mechanical properties of ceramic Nb2O5. Under the influence of high-energy light in Nb2O5 ceramics produced micro-and nanostructure of fractal type and is caused in part "island ...
M.N. Palatnikov   +3 more
doaj  

Influence of the Second Coordination Sphere on the Electrochemical Behavior of Chromium Complexes in Chloride Melts: Experimental and Calculation Methods

open access: yesInternational Journal of Electrochemical Science, 2013
The cyclic voltammetry method was used to determine the standard rate constants of charge transfer (ks) on a glassy carbon electrode for the Cr(III)/Cr(II) redox couple in the systems of NaCl–KCl–CrCl3, KCl–CrCl3, and CsCl–CrCl3 in the temperature range ...
Yu.V. Stulov   +2 more
doaj   +1 more source

Mineral Element Insiders and Outliers Play Crucial Roles in Biological Evolution

open access: yesLife, 2022
The geosphere of primitive Earth was the source of life’s essential building blocks, and the geochemical interactions among chemical elements can inform the origins of biological roles of each element.
Eli K. Moore   +4 more
doaj   +1 more source

Feasibility and Preliminary Efficacy of Integrative Neuromuscular Training for Childhood Cancer Survivors: A Pilot Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of childhood acute lymphoblastic leukemia (ALL) often exhibit early deficits in muscle and movement competence, which can compromise long‐term health. Integrative neuromuscular training (INT), a multifaceted approach combining fundamental movement activities with strength exercises, may help address these deficits during ...
Anna Maria Markarian   +7 more
wiley   +1 more source

BIOAVAILABILITY OF ELEMENTS FOR EFFECTIVE PHYTOREMEDIATION AND PHYTOMINING: THE ROLE OF RHIZOSPHERE PROCESSES [PDF]

open access: yes, 2018
The success of phytoremediation (especially phytoextraction) and phytomining depends heavily on the bioavailability of target elements, which, among others, is a function of soil mineral phases, soil organic matter, pH and redox potential ...
Heilmeier, Hermann   +3 more
core  

СERAMICS BASED ON COPRECIPITATION OF NIOBIUM AND TANTALUM PENTOXIDE: STRUCTURE AND PROPERTIES [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
Using methods of probe microscopy and impedance spectroscopy, the structure, mechanical and electrophysical properties of ceramics on the basis of coprecipitated pentoxide Nb2(1-y)Ta2yO5 were investigated.
O.B. Shcherbina   +3 more
doaj  

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